Twrch Trwyth

Huge monstrosity, chaotic evil

Armor Class 14 (natural armor)
Hit Points 195 (17d12 + 85)
Speed 40 ft.

22 (+6) 10 (+0) 20 (+5) 6 (-2) 12 (+1) 6 (-2)

Skills Perception +5
Damage Immunities poison
Condition Immunities poisoned
Proficiency Bonus +4
Challenge 10 (5,900 XP)


  • Bristled Hide. At the start of each of its turns, the twrch trwyth deals 7 (2d6) poison damage to any creature grappling it.
  • Charge. If the twrch trwyth moves at least 20 feet straight toward a target and then hits it with a tusk attack on the same turn, the target takes an extra 18 (4d8) bludgeoning damage. If the target is a creature, it must succeed on a DC 18 Strength saving throw or be knocked prone.
  • Relentless (Recharges after a Short or Long Rest). If the twrch trwyth takes 27 damage or less that would reduce it to 0 hit points, it is reduced to 1 hit point instead.
  • Thick Mane. A twrch trwyth can hold the equivalent of 1 cubic foot or 30 pounds of gear in its mane. Creatures attempting to reach it must first contend with the twrch trwyth’s bristles.


  • Multiattack. The twrch trwyth makes two melee attacks: one with its Tusks and one with its Hooves.
  • Tusks. Melee Weapon Attack: +10 to hit, reach 10 ft., one target. Hit: 13 (2d6 + 6) slashing damage.
  • Hooves. Melee Weapon Attack: +10 to hit, reach 10 ft., one target. Hit: 13 (2d6 + 6) bludgeoning damage.
  • Venomous Shake (Recharge 5-6). The twrch trwyth shakes its bristled body violently, releasing venomous spines. Each creature within 10 feet of the twrch trwyth must make a DC 17 Constitution saving throw, taking 35 (10d6) poison damage on a failed save, or half as much damage on a successful one. A creature that fails the save by 5 or more is also poisoned for 1 minute.


A twrch trwyth’s appearance is that of a massive boar covered in venomous bristles. These bristles can release harmful spines, causing poison damage to those unfortunate enough to be near the creature. The implements on its head comb, scissors, and a razor add to its unique and dangerous nature.

A twrch trwyth (TORC-tor-WITH) is an enchanted and colossal wild boar, cursed to roam the land in a monstrous form. Its venomous bristles and immense size make it a formidable opponent. A twrch trwyth is known for carrying valuable implements on its head, which are often required for certain quests.

The hunt for twrch trwyth is a legendary tale in folklore. In legend, it is pursued by a king and his knights, culminating in a dramatic battle that left several of them dead before being driven into the sea and drowned.

Section 15: Copyright Notice

5E RPG: Celtic Bestiary. Copyright 2023, Mal and Tal Enterprises, LLC; Author Michael Tresca.

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